From 14990ad92dc4669dd59d5c345feb7d6ed7b95afa Mon Sep 17 00:00:00 2001
From: JacobBarthelmeh <jacob@wolfssl.com>
Date: Wed, 7 Jun 2023 15:05:52 -0600
Subject: [PATCH] set return bio to null after free on error

---
 src/bio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/bio.c b/src/bio.c
index 595343488..5f845cf0b 100644
--- a/src/bio.c
+++ b/src/bio.c
@@ -2375,6 +2375,7 @@ int wolfSSL_BIO_flush(WOLFSSL_BIO* bio)
         if (err == 1) {
             wolfSSL_free(ssl);
             wolfSSL_BIO_free(sslBio);
+            sslBio = NULL;
             wolfSSL_BIO_free(connBio);
         }